Argentina is in negotiations with Chinese investors regarding the construction of a $750m copper refinery in the South American country.

The project includes the construction of a plant to process copper concentrates into 210,000tpa of cathode copper and 700,000tpa of sulfuric acid, but a timeline has not yet been revealed.

Argentina mining secretary Jorge Mayoral said that the issue has been discussed with Chinese firms that produce cathode copper.

Argentina has only one copper mine, Bajo de la Alumbrera, which has an annual production capacity of 150,000Mt of copper and 400,000oz of gold in concentrate.

Argentina currently ships copper concentrates abroad, and is seeking to process them domestically as copper production rises.